Machine for filling molds for founding



1930. E; o. BEARDSLEY ET AL 1,774,076

MACHINE FOR FILLING MOLDS FOR FOUNDING F i1ed Dec. 8, 1924 5 Sheets-Sheet 2 6% 2 32067270717 Wm 'r w 7 Aug. 26, 1930- E. o. BEARDSLEYET AL 1,774,076

MACHINE FOR FILLING MOLDS FOR FOUNDING Filed Dec. 8, 1,924 5 Sheets-Sheet 5 Aug. 26, 1930. 0, BEARDSLEY Ei' AL 1,774,076

MACHINE FOR FILLING MOLDS FOR'FOUNDING g- 1 E. o. BEARDSLEY ET AL MACHINE FOR FILLING MOLDS FOR FOUNDING Filed Dec. 8, 1924 5 Sheets-Sheet 5 Patented Aug. 2 6, 1930 UNITED "STA ELMER o. BEARDSLEY nn wAL'rEn F. rrrnn, or CHICAGO, ILLINOIS, essrenons r THE BEARDSLEY & PIPER COMPANY, or CHICAGO; ILLINOIS, A CORPORATION or rumors.

Application filedlDeeember, s, 1924. Serial No. 754,487.

Theinvention relates to machines-for fill-' 'inmmolds for founding."

ne'object of the invention is to provide a machine of the portabletype and equipped with a reservoir for holding a load of sand from which the flasks are to be filled, which is comparatively simple in construction and easy of .operatlon.

Another ob ect of the invention is to pro- 2 The invention conslsts in the several novel features hereinafter set forth and more par-- ticularly defined by claims at th'e'conclusion hereof.

In the drawings: Fig. 1 is a side elevation of a machine embodying the invention. Fig. 2 is a plan, the molding machine being omitted. 'Fig. 2 is a detail section of a portion of the endless conveyor which forms the bottom of the reservoir. I Fig.3 is a longitudinal section of the partsshown in Fig. 2. Fig. 4 is an enlargedsection'taken on line 4-4 ofFig. Fig. 5is an end view of the parts shown in Fig. 4. Fig.6 is an enlarged section taken'on line 6 6 of Fig. 1 Fig 7 is.

i a section taken on line 7-7 of Fig 6. Fig. 8

is an enlarged section taken on line 88' of Fig. 1. Fig. 9 is a section taken on line 9- 9 of Fig. 8. a 1 I y Y .The'invention is exemplified in a truck which is adapted to run upon a narrow track formed by rails 15'laid on the foundry floor. This truck is provided with a pair of front traction wheels 16 and a pair of rear wheels 17 whichare adapted to run on the rails." The framework of this truck comprises a cast housing 18, through which the axle 19 for the traction-wheels 16 extends; a pair of sills 20, formed of channel beams secured to the housing at 21 and extending rearwardly therefrom; an end frame or bracket 22 fixed to the sills,20 and carrying stubshafts 23' 50 for'the carrying wheels 17; and a tubular the opening. ,theopening bylifting the gate so that they MACHIN non FILLING Moms FOR FOUNDING reach 24, which has itsfront end fixed in 27 to the'rear of housing 18 and its rear end fixed in a depending 111g 28 on bracket 22 by a clamping member 29. The housing 18 forms an enclosure for the propelling mechanism for the truck and the sand feeding mechanism. i g

A"reservoir 30, which is. preferably elongated longitudinally and is downwardly con vergent, is adapted to retain a load of sand sufficient to fill a large number of. flasks.

The sides of reservoir 30 are fixed to-the sills 20 of the truck by means of angle bars 31 which are riveted to the reservoir and bolted to the top flanges of the sills. The top of this reservoir is open, so that it can be filled from 'an' over-head sand delivery system or. in

any other. suitable way. The bottom of this 7 reservoir is formed of an endless conveyor 33 which is'adapted to feed the sand forwardly through a discharge opening 34 adj acent the bottom and'in the front wall of the reservoir. This'conveyor consists of an'end- .less' 'series of slats 35 which are adapted to overlap one another to form a closure; a pair of endlesslinkbelts 36, to which lugs 37, fixed'to the slats 35 are pivoted; sprocketwheels '38 for said belts, fixed to. ashaft 39, which is journalle'd in bearings 40 fixedto' wheels 41' on a shaft42, which is jou'r'nalled in plates 43. Plates 43 are longitudinallyadjustable bymeans of screws 44 to keep the belts and conveyor taut.

The discharge open ng 34 is normally closed byacurved gate 45 which is verticallv movable to serve as a valve, whereby the height of the discharge opening may be varied to regulate the quantity of sand disa socket25 on a plate 26 which is bolted at Iso thein'nerisides' of 'sills 20, and sprocketcharged from the reservoir. Said I gate is supported by apair of arms 46 which are pivotedto the reservoir sides at '47 so the gate can swing upwardly or downwardly. These arms are preferably hung so that ordi-' nary pieces of scrap, which are larger than will forcetheir way through will not obstruct the discharge opening and the sand. Mechanism is provided to raise and lower gate and consists of a crank 48 journalled in a bracket 49 and carrying a worm 50 to operate a gear 51 fixed to rotate with a drum 52 and a flexible element, such as a cable 53, wound around the drum and attached at its lower end to the gate. Drum 52 is carried by the shaft '54 which is supportedin bracket 55 and 56 attached to the front of the reservoir 30. Cable 53, being flexible, permits the gate 45 to he forcibly lifted by scrap on the conveyor 33 and also permits the gate to fall by gravity to its desired position after the scrap has passed through the discharge'opening. The con- :veyor 33' is operated to feed the sand step-8 by-step through the discharge opening by f means of a' ratchet wheel '57 fixed to the projecting vend of the sprocket shaft 39 and a pawl 58 .on a rockerarm 59, which is pivoted on shaft 39 and is oscillated by a link 60 which is pivoted to said arm and to a wristpin 61 on the outer end of a shaft 61which is driven by gearing hereinafter described. This construction exemplifies a reservoir v adapted to contain a load of sand which is provided with an endless .conveyor bottom for discharging the sand in regulated quantity for delivery to the molding machine.

The conveyor, belt:33 discharges the sand into 'a screening or riddling device 62 which isdisposed underand adjacentthe front end v lower endsto the bracket 26,.and .a pair of resilient strips 68 at the rear of box 63.

Strips 68have their upperends attached to anangle'iron 69 which is riveted to the box 63 and their lower ends secured. at 70 to a bracket 71 which is recessed to fit around a 7 9,1 in housing 18 and it is suitably coupled to drive a coaxial shaft 92, whichis jour- .nalledin.,a,bearingl93 in the housing. A-

portion ofl the tubular reach 24 and is clamped thereto by -:a 'U-bolt 72. The screening device is vibrated rapidlyzby wrist-pins 73 on the ends of a shaft Hand resilient rods'73 Anelectric motor90 is mounted in a pocket pinion 94.0 1 one ,endof shaft. 92 meshes with a gear ;95Wl 1l0h is keyed to .the shaft 74:- This motor and ,gearingdrive theshaft 74 .to-operatethe wristpins 7,3:which vibrate :the riddle-.or screening device. A shield 96 covers .the outer:end .of .electric,,motor 90.

Pinion 94. and-gear 95. are locatedin acham- .ber 97 50B the outsideof one of the side walls .of the housing 23 and the outer side of this.

Chamber ,is. formed by a removable .plate. 98.

This chamber is adapted to contain a lubricant to keep this gearing properly lubricated. The housing 18 is formed, as at 99, to enclose the inner side of the motor 90, so that it will not be exposed to sand in the pocket 66.- This construction exemplifies ascreeningndevice which. is located to receive sand from the bottom of the reservoir and for delivering the sifted sand into a pocket from which it is conveyed for use in the molding machine.

An elevator is mounted on the truck for lifting the sand and delivering it into the conveying mechanism which is movable with and feeds the sand to the projector which slings it into the flasks. This elevator comprises a sprocket wheel 75, which is formed in sections and secured to the shaft 61; a chain 7 6 equipped with sand buckets 77 an overhead sprocket 78 on a shaft 7 9, which is mounted in levers 80 which are fulcrumed at 81 on the upper end of a column 82, which is bolted, as at 83, to the top of housing 18. This column is hollow and the descending reach of the chain and buckets pass therethrough. Sprocket 75 is disposed in the pocket 66, so that the buckets, as they pass around said sprocket, will dip into the sand from the screening device 63 and elevate it. At each side of the pocket 66, diagonalblades 84 are fixed to shaft 61 to agitate the sand and prevent it from becoming packed in the pocket, so that it will flow freely into the buckets 77. As the buckets 77 pass around sprocket-78, they discharge the sand forwardly over the top of the column 82 and into the hopper 85. The elevator chain 76 is kept taut by springs 86 which are connected to levers 80 and to cables 87. .One end of each cable 87 is wound around the shaft of ,a ratchet wheel 88 which is mounted on one pfroma pocket in the truck and to which it is delivered from the reservoir carriage .by the truck.

"Shaft 61, which operatesthe. wrist pin 61 to operate the conveyor bottom 33 to feedsand tothe screeningdevice and carriesthe driving sprockets 7 5 for the elevator chain 76, is

driven from shaft 74, which is driven from motor 9O as hereinbefore described, by a pin- -ion 100 which is keyed to said shaft and a gear-wheel 101 which is fixed to one end of shaft 61. Pinion 100 and gear 101 are disposed in a chamber 102 formed on one side of the housing 18 having its outer side closed by a removable plate 103. This chamber is adapted to retain oil to keep the gearing therein efficiently lubricated. The motor 90 and gearing driven thereby exemplify mechanism by-which the elevator, endless bottom sand at high speed into flasks ismounted on I 'the truck and comprises -a column 105; a' jib 106 mounted to swing horizontally around on the arm which feedsthe sand intothe pro jector-head. This projector may be of the for the reservoir and the screening device may be driven from a motor mounted on the truck- Also one in which these gearin'gs are I protected from sand in the pocket 66 and kept well lubricated.

Amolding machine for projecting wads of the column; an arm 107 pivoted on the distal end of jib 106 to swing horizontally; a projector-head 108 at the outer end ofsaid arm and driven by an electric motor 109 on the inner end 'of the arm, a conveyor-belt 110 mounted to swing with arm 107 and a conveyor-belt 111, which is adapted toconvey sand from the hopper85 into which it is delivered by the elevator to the conveyorf 110 [construction set-forth in an application filed by us December 1, 1924, and serially numbered 7 53,095 to which reference may be had for further details thereof. It will belunderstood, however, that other forms of sand projectors, such as those set forth in our Patents Nos. 1,309,833, 1,335,642, 1,408,493

" and our application No; 695,705 may be used;

' The mechanism for driving the traction wheels to propel the truck comprisesa reversible electr c motor 114 which is mounted in a chamber 115 formed in housing 18; a

shaft 116 mounted in a bearing 117 in the housing and coaxial with the motor, 114;.a pinion 118 fixed to said shaft; a gear 119,

meshing with pinion 118"and mounted on a shaft 120; a pinion a gear:wheel'122 fixed to a shaft 12 3'which' 121 rigid with gear 119;

is mounted in a bearing 124 carried by a horizontal wall125 of the housing 18; a wrist-pin 126 on one end of shaft 123 carrying a pawl 127; and a ratchet'128 the traction-wheel axle 19.

loosely mounted on A clutch-collar 129 is slidable on and splined tothetractionwheel axle 19 and provided with clutclrteeth adapted to establishadriving connection bereversible type,

tween ratchet-wheel; 128 and the axle 19. This pawl and ratchet are used to propel the i. truck slowly from flask to flask while 'thepro jector is being operated to fill them. i

For propelling the truck at'high desired in moving the machine to andffrom its loading point orother places and the place Where the empty flasks'are arranged, a pinion 130,11X8Cl130 rotate with gear 122 and shaft 123 drives a gear 131, which is loosely mounted on the traction-wheel axle and is provided may be established between. the high speed gear 131 and axle 19. Motor'114 is of the so that the machine may be propelled athigh speed in either direction through the gear131.

"ion 118 and gear a load of sand.

screening device 63.

'wrist-pins73 will with clutch'teeth 132 adapted for engagementwith corresponding teeth on theclutch collar 129, so that a driving relation A controller134 at the x front of housing 18 is fixedto a shaft 135,

which'is pivoted in the housing and carries,

at its inner end, a fork 136 whichis adapted toshift the clutch-collar 129 into engage.

nient with either the ratchet 128 for slow. for ward'propulsion or with the gear 131 for high speed. propulsion, as well as to shift it in a neutral position when the truck is to re-' main stationary. The outer end of shaft 117 is supportedbya 119 are mounted in apocket bearing bracket 117 Pin on the outside of a housing 18 which is en closed by a removable cap 138. The remainof the gearing for driving the traction wheels is arranged in a chamber 139 which is been placed in readiness for filling at either or both sides of the runway for the machine, where the truck will be stopped. Next, the operator will start the motor 90 and shift the controller lever 134 to cause the truck to be propelled forwardly by means of pawl 1 27, ratchet-wheel 128 and clutch-collar 129. Motor 90 will operate thelower elevatorshaft .61 through pinion 94, gear 95, shaft 74, pin- 101. This will operate the ion 100, and'gear wrist-pin 61 to operate the conveyor bottom 33 of the reservoir 30 to feed sand into the Simultaneously, the

bars 7 3 which have their rear ends connected to cross-bars 69 tovibrate the screening device and sift the sand delivered into it by the conveyor33." The elevator 76, 77, will be simultaneously operated by sprockets 75 on shaft 61. The :elevator will discharge sand into'the hopper 85. The projector-head 108,

f to which sand from the hopper 85 will be conspeed, as

tinuously fed, will be moved horizontally over the flasks by an operator to sling wads of sand at high speed into all portions of the flasks. -Whilea flask at either side of the runway is'bein g filled, the pawl 127, ratchet g 128 will advance the truck sutficiently to bring the next flask or flasks within reach of the projector-head. This may be contained until,

all of the'sand in the reservoir 30 has been used. lhereupon, motor 90 will'be'stopped operate resilient rods or to stop the conveyor belt 33, the screening device and the elevator, and controller lever 134 will be shifted to put gear 131 into driving relation with the axle 19,'s0-that the endetermined rate or volume.

tire machine may be quickly propelled to the loading point and there re-loaded.

A characteristic of the machine is that it is comparatively narrow so it may be operated over a narrow space or runway in the foundry, which is important where theeconomizing of space is necessary. This results from making the reservoir comparatively narrow and longitudinally elongated and arranging the reservoir, elevator and molding machine longitudinally of one another. The housing, formingpart of the truck, is utilized to enclose all of the driving mechanisms, so they can be kept well lubricated and protected from sand. The use of beams and a tubular reach in the truck is advantageous in constructing the truck so that it will properly and efficiently support the several parts. The conveyor belt,'forming the bottom of the reservoir and driven at slow speed, causes uniform delivery of sand from the reservoir to the screening device so that the supply of sand tothe molding machine will be in pre- The machine can be advantageously used in jobbing :Eoun dries where molds of different character are to be filled. The projector-head can be shifted to either side of the runway, so that flasks at either side orboth sides thereof may be filled while the machine is making a run in one direction. Y

The invention is .not to be understood as restricted to the details set forth, since these may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention.

Having thus described the invention, what we claim as new and desire to secure by Letters Patent, is: V

1. In combination, a relatively narrow portable truck, mechanism on the truck for propelling it, a longitudinally elongated reservoir mounted on the truck and adapted to contain a supply of sand, means for discharging sand in regulated quantity from the reservoir, a sand projector mounted on the truck, longitudinally of the reservoir, and means for delivering sand from the discharge means to the projector comprising an elevator mounted on the truck and disposed longitudinally between the reservoir and'the projector.

2. In combination, a relatively narrow portable truck, mechanism on the truck for propelling it, a longitudinally elongated reservoir mounted on the truck and adapted to contain a supply of sand, a longitudinally travelling conveyor at the bottom of the reservoir for discharging sand in regulated quantity from one end of the reservoir, a sand projector mounted on the truck and longitudinally of the reservoir, and means for delivering discharged sand from the conveyor to the projector.

3. In combination, a relatively narrow portable truck, mechanism on the truck for propelling it, a longitudinally elongated reservoir mounted on the truck and adapted to contain a supply of sand, a longitudinally travelling belt at the bottom of the reservoir for discharging sand in regulated quantity from one end of the reservoir, a sand projector mounted on the truck,'longitudinally of the reservoir, and means for delivering discharged sand from the belt to the projector. comprising an elevator mounted on the truck and disposed longitudinally between the reservoir and the projector.

4:. In combination, a relatively narrow portable truck, mechanism on the truck for propelling it, a longitudinally elongated reservoir mounted on the truck and adapted to contain a supply of sand, means for discharging sand in regulated quantity from the reservoir, a sand projector mounted on the truck,"longitudinally of the reservoir, means for delivering discharged sand from said means to the projector, comprising an elevator on the truck disposed longitudinally between the reservoir and the projector, and a screening device between the discharge means and the elevator.

5. In combination, a relatively narrow wheeled truck, mechanism on the truck for propelling it slowly in one direction and at high speed in said direction and in the opposite direction, a longitudinally elongated res-ervoir mounted on the truck and adapted to contain a load of sand, means for discharging sand in regulated quantity from one end of the reservoir, an elevator disposed longitudinally of one end of the reservoir, means to deliver discharged sand to the elevator comprising a screen mounted on the truck, and a molding machine mounted on the truck, disposed longitudinally of the elevator, and to which sand is fed from the elevator.

6. In combination, a relatively narrow portable truck, means on the truck for propelling it, a reservoir on the truck adapted to contain a load of sand, an endless conveyor at the bottom ofsaid reservoir adapted to discharge sand in regulated quantity from the reservoir, a sand projector mounted on the truck, means for delivering sand to the projector, comprising a screening device receiving the sand from the conveyor and an elevator to which the screened sand is delivered, and means on the truck for driving the conveyor.

7. In combination, a relatively narrow portable truck, means on the truck for pro pelling it, a reservoir on the truck adapted to contain a load of sand, an endless conveyor belt forming the bottom of said reservoir, a gate to control the discharge of sand by the conveyor, a sand projector mounted on the truck, means for delivering sand, from the discharge means for the projector, and means on the truck for driving the belt.

8. In combination, a relatively narrow portable truck, means on the truck for pro pelling it, a reservoir on the truck adapted to contain a load of sand, an endless conveyor belt at the bottom of said reservoir adapted to discharge sand'in regulatedquantity from the reservoir, a sand projector mounted on the truck, means for delivering sand from the discharge means to the projector, and means on the truck for driving the belt, comprising a pawl and ratchet and a motor.

on the truck, a screening device mounted on the truck below the reservoir and adapted to discharge sand into said pocket, means for feeding sand in regulated quantity from the bottom of the reservoir to said device, an

elevator mounted on the truck tolift sand from thepocket, a sand projector mounted on the truck and to whichthe elevated sand is fed, and mechanism on the truck for operating said device and driving the elevator.

11. The combination of aportable truck, mechanism mounted on the truck for propelling it at low speed in one direction and at high speed in said direction and in the opposite direction, a reservoir for sand mounted on the truck, means for discharging sand in regulated quantity from the bot tom of the reservoir, the truck being provided with an enclosed pocket into which the sand is delivered from the reservoir, a sand elevator mounted on the truck, having its lower end operating in said pocket, a sand projector mounted on the truck, to which sand is fed from the elevator, and mechanism on the truck for driving the elevator. I

12. The combination of a portable truck, mechanism mounted on the truck for pro pelling it, a reservoir for sand mounted on the truck, an endless conveyor forming the bottom of the reservoir for discharging sand in regulated quantity from the reservoir, the truck being provided with an enclosed pocket into which the sand is delivered from the conveyor, a sandvelevator mounted on the truck and having its lower end operating in said pocket, and a sand projector mounted on the truck, to which sand from the elevator is fed.

13. The combination ofa wheeledtruck comprising a housing, a reservoir for containing a load ofsand, mounted'on the truck, a sand'projector mounted on the truck,mechanism for delivering sand fromhthe' reservoir to the projector in regulated quantity com prising a screeningdevice and an elevator,

gearing for operatingthe'elevat'or, and the screening, enclosed in saidu'housing, and a motormounted on the truck for driving said gearing f i I i114. The combination'of a wheeledtruck comprising a housing,=a reservoir for. containing a load of sand, mounted-on the truck,

"ais'andprojector mounted on the truck, mechanism for delivering sand from there'servoir to.the projector in regulated quantity comprising a device for discharging sand from the bottom of. the reservoir, a screening devilce,wand an elevator, gearing for operating the elevator, the screening-device and disch-arge device,enclosed in said housing, and a motor. mounted on the truck forzdriving saidgearing.

15.The combination of aiwheeld truck comprising a housing provided with a pocket, a reservoir for containing ia'load'of'sandomounted on the truck,- a sand projector mounted on the truck,mechanism for delivering sand from the reservoir to the projector in regulated quantity comprising means to discharge sand into the pocket from the bottom of the reservoir, a screening device, and an elevator, gearing for operating the elevator, screening device and discharge device, enclosed in said housing, and a motor mounted on the truck for driving said gearing. a

' 16. The combination of a wheeled truck comprising a housing, mechanism for propelling the truck comprising a motor and voir mounted on the truck adapted to contain a load of sand, a sand projector mounted on the truck, means for delivering sand in regulated quantity from the reservoir to the projector comprising a discharge device, a

gearing, enclosed by said housing, a reserscreening device and an elevator, and gear- I ing for operating said devices and the elevator, also enclosed by said housing.

17. The combination with a portable truck comprising a housing, traction and carrying wheels, and a tubularreach secured to the housing, of a reservoir for containing a load of sand mounted on said truck,mechanism for driving the traction wheels, a sand prodev1ce,,and driving mechanlsm for sa1d bottaining a load of sand mounted on said beams, mechanism for driving the traction wheels enclosed in said housing, a sand projector mounted on the housing, and mechanism vfor delivering sand in regulated quan tity from the reservoir. to the projector, comprising a movable bottom for discharging sand from thereservoir, a screening device for the discharged sand, and an elevator to which: the sand is delivered by said screening tom, device and elevator mounted in said housing. V

19. The combination of a portable truck,

means on the truckfor driving it, a reservoir adapted to Containa load of sand mounted on the truck, a screening device belovvith'e reservoir, means todischarge sand from the reservoir to said device, an elevator to Which sand from the screening device is delivered,

'a'motor. on the truck, gearing for driving the discharge means, screening device and the elevator from th'e'motor and a sand projector to which sand is delivered fromthe elevator mounted on the truck.

' Signed at Chicago, Illinois, this 22nd day of October, 1924.

' ELMER O.- BEARDSLEY.

. V 'WALTERF. PIPER. 

